After endless hours of frustration trying to fix Minecraft, I discovered it was the OpenGL setting. It works fine in normal, but blows up in Optifine as of today apparently. Regardless, I got it working again and got to test out my new screen capture method.
Here are three example videos. They're all identical, except for the quality. I need opinions. Is there any point in doing the HD qualities? I can't truly see any better quality here on my screen, but it might just be me.